The supergravity model in [1]} with two unconstrained superfields has the Kähler potential and superpotential given in eq. (REF ), (REF ). The potential, according to [1]} has the standard form, the only difference is the value of \(\tilde{M}_{Pl}\)
\(V= e^{K\over \tilde{M}_{Pl}^2} \left( DW_i g^{i{\bar{\jmath }} } {\overline{DW}}_{\bar{\jmath }} - 3 {|W|^2\over \tilde{M}_{Pl}^2}\right) \ .\) 
